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Full text of "Opisthobranch newsletter"




OPISTHQBRANCH NEWSLETTER Volume 13, Number 2, Page 12 4 MAR i 

ft"****!! 

9982 BEHRENS, D. - Delete. See 2486 RUSSO, ROM. \e c °£? 

The San Luis Obispo County (California) Telegram-Tribune, Monday, January 26, 
1981, has a picture of Phidiana pugnax which was taken by Joe Dickerson of Pismo 
Beach. The picture won the 1980 Picture of the Year award given by the California 
Fish and Game Commission. 

Hans Bertsch writes: "...I just corrected the page proofs (complete with color 
separations) for my and Scott Johnson's book Hawaiian Nudibranchs. We expect it |o\l 
be published by April 1981. The majority of the full color photographs are in situ, \ \\ 
underwater habitat shots (not aquarium photos), and portray the animals' natural 
environments as well as their body shapes and colors. We have new records for the 
Hawaiian islands, illustrations of some new species we are in the process of naming, 
plus lots of information and photos of predation, camouflage, egg masses, etc." 

2373 BERTSCH, HANS. January 1, 1981. Rectification of the Generic Placement of 
Sclerodoris tanya (Marcus, 1971), comb, nov., A Nudibranch from Southern California, 
with a Range Extension to the Gulf of California, Mexico. THE VELIGER, 23( 3 ):217-220, 
figs. 1-7; tbls. 1-2. 

2374 BERTSCH, HANS, June, 1980. Preliminary Analysis of the Geographic and 
Bathymetric Distribution of Hawaiian Chromodorids (GastroDoda: Opisthobranchia) . 
THE FESTIVUS, 12(6 ):73-77; fig. 1; tbl. 1. 

2475 BROWN, G.H., July, 198O. The British species of the aeolidacean family 
Tergipedidae (Gastropoda : Opisthobranchia) with a discussion of the genera. 
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 69:225-255, 7 figs. 

2476 CAREFOOT, THOMAS, 1977- Pacific seashores: a guide to intertidal ecology. 
University of Washington Press, Seattle, 208 pp., 88 photographs, 176 text figs. 
[Aeolidia, Anisodoris, Archidoris, Dendronotus, Diaulula, Glaucus, Glaucilla, 
Onctaidoris.} 

2477 CAREW, THOMAS J., EDGAR T. WALTERS & ERIC R. KANDEL, January 30, 1981. 
Associative learning in Aplysia: cellular correlates supporting a conditioned fear 
hypothesis. SCIENCE, 211 (4481 ) :501-504, 2 text figs. 

2478 CARLTON, JAMES T., 1979. Introduced Invertebrates of San Francisco Bay. IN: 
C0N0M0S, T. JOHN, San Francisco Bay: The Urbanized Estuary. Investigations into the 
Natural History of San Francisco Bay and Delta With Reference to the Influence of 
Man. FIFTY-EIGHTH ANNUAL MEETING OF THE PACIFIC DIVISION/AMERICAN ASSOCIATION 
FOR THE ADVANCEMENT OF SCIENCE, held at San Francisco State University, San 
Francisco, California, June 12-16, 1977, pp. 427-444. [Tenellia pallida, Eubranchus 
asisakiensis, Okenia plana, Trinehesia sp.] 

2479 DELCOMYN, FRED, October 31, 1980. Neural basis of rythmic behavior in animals. 
SCIENCE, 210(4469 ):492-498. [Pleurobranchaea californica, Aplysia sp., Tritonia 
diomedea] 

2480 DOLIN, ERIC, Fall 1980. An Annotated List of Gastropods of Long Island Sound. 
OF SEA AND SHORE, 11(3): 167-172, [9 figs.]. [Retusa canaliculata, Cylichnella oryza, 
Rictaxis punctostriatus] 

2481 FARLEY, JOSEPH & DANIEL L. ALKON, December 19, 1980. Neural organization 
predicts stimulus specificity for a retained associative behavioral change. SCIENCE, 
210(4476):1373-1375; 2 text figs. [Hermissenda crassicornis] 

2482 GOSLINER, TERRENCE M., April. 1980. Systematics and phylogeny of the Aglajidae 
(Opisthobranchia : Mollusca). ZOOLOGICAL JOURNAL OF THE LLINNEAN SOCIETY, 68:325- 
360. 24 figs. 

2483 JAECKLE. WILLIAM B., January 1, 1981. New Distributional Records for Two 
California Nudibranchs. THE VELIGER, 23(3):240. [Ancula lentiginosa, Hallaxa chani] 

2484 JOHNSON, SCOTT, July-August, 1979- Stinging nudibranchs. OCEANS, 12(4):49; 1 
text fig. 

2485 KAY, E. ALLISON, 1979- Reef and Shore Fauna of Hawaii, Section 4: Mollusca. 
Bernice P. Bishop Museum Special Publications 64 (4). xvii + 653 pp., 195 text figs. 
Bernice P. Bishop Museum Press. Honolulu, Hawaii. [$30.00 USA] 

_ 2486 RUSSO, RON, May-June 1979- Hang Gliding -- Underwater. SEA FRONTIERS, :150- 
153, 4 photos. [Chelidonura inermis] 

2487 RUSSO, RON, July-August, 1979- A salute to sea slugs. OCEANS, 12(4):42-49; 6 
text fi£s. 

2488 POWELL, A.W.B., 1979. New Zealand Mollusca, Marine, Land and Freshwater Shells. 
William Collins Publishers Ltd., Box 1, Auckland, New Zealand, xiv + 500 pp., 82 pis.; 
many text figs. [$60.00 (New Zealand)] 

2489 SCHMEKEL, LUISE, January 1, 1981 - Notes & News. Correction. THE VELIGER, 
23(3):282. [Piseieotecus evelmae synonymous with Flabellina gabinierei Vincente, 
1975; should be called Piseinotecus gabinierei (Vicente, 1975)1 

2490 SMITH, LYNW00D S., 1976. Living Shores of the Pacific Northwest. Pacific 
Search Books, 715 Harrison St., Seattle, WA 98109, 1-160; figs. 1-148 + unnumbered 
figs.; tbls. 1-2. [Photos by Bernard J. Nist; 9 spp. nudibranchs] 

2491 WALTERS, EDGAR T., THOMAS J. CAREW & ERIC R. KANDEL, January 30 ? 1981. 
Associateve learning in Aplysia: evidence for conditioned fear in an invertebrate 
SCIENCE, 211(448l):504-506; 2 text figs. [A. californica] 

2492 WELLS, FRED E. & TIMOTHY J. THRELFALL, October 1, 1980. A Survey of the 
Softbottom Molluscs of Cockburn Sound. Western Australia. THE VELIGER, 23(2):131- 
140, tbls. 1-3, figs. 1-7. [Bulla botanica] 



/ 






OPISTHOBRANCH NEMSLETTER 

April 1961 



Zoo*. Oept^ ; 
Volume 13, Number 4, Page 15 



%V#fc ". ^&'L-^flfc^- ' -, • , 






j*& 









Illustration at right 
Phyllaplysia engeli Marcus, 1955 
Drawing by Eveline Marcus 





The OPISTHOBRANCH NEWSLETTER is published by Steven J. Long, 359 Roycroft 
Ave, Long Beach, California 90814, USA. Telephone 21 3-439 -2026 . 
Subscription rates are $15-00 per year for individuals and $17-50 
for institutions. Back volumes are available at $10.00 per volume. 
(24X reduction) of back volumes are $5-00 per volume. 

REVIEW 



per year 
Microfiche 



Two photographic works are listed in this issues from James Lance. The 
quality of the photographic and printing work is unsurpassed by anything 1 
have seen to date. It is quite an accomplishment to bring the beauty of 
opisthobranchs to such a wide audience. My compliments to Jim. Anyone 
interested in obtaining copies of these articles may do so by writing to the 
publishers: 

Discover: Time, Inc.; Rockefeller Center: New York, NY 10020; (Splendor in 
the Sea); (December 1 9 8 issue; about $2.00) 

Seacoast; The Seacoast Building; 121 West E Street; Encinitas, CA 92024: 
(20,000 Hues Under the Sea); (February 19 81 issue; about $1.50) 

CURRENT EVENTS 

The Western Society of Malacologists annual meeting will be held at San 
Diego State University from 23-26 June, 1 9 8 1 . A symposium entitled: "Recent 
Opisthobranch Research" will be chaired by James R. Lance on Thursday 
morning. Dave Mulliner will coordinate the annual opisthobranch slide show 
and talk fest starting around 8 P.M., Wednesday, in the lobby of Olmeca Hall. 
All persons desiring to participate with a paper are encouraged to contact 
Carol Skogland, 384b E. Highland Ave., Phoenix, AZ 85018, prior to May 15, 
1981. 

READER FORUM 

From Judith Hunter: "I would like to endorse your remarks about the use 
of common names for animals which do not have them and particularly when 
given more prominence than the scientific name." 

From Dr. Riccardo Cattaneo: "I need some information. Firstly I have 
begun a study of electrophoresis on some nudibranchs (especially eolids) to 
see if there are differences in the enzymes of species who live in the same 
community and feed on the same hydroids. This study may be interesting also 
for systematic problems. I have not found many references about this 
argument. Is it possible to know something more? Would anyone who has any 
news please write to me? 

Secondly, I have seen in Thompson's paper (1975) that gen. Peltodoris 
Bergh 1880 is in synonymy with Discodoris Bergh 1877- I know Peltodoris 
atromaculata Bergh i860 (type species of the genus), which is very common in 
Mediterranean Sea, very well. The description in Thompson's paper for the 
genus Discodoris speaks of a 'whole body flexible, not hard and rubbery . 
Peltodoris atromaculata has however a very hard body, very rich in spicules 
I think this genus must be conserved only for this very evident 
characteristic which is part of the type species of the genus." 

From Eveline Marcus: "Your question about Pyramidellid s: Vera Fretter and 
Alastair Graham have (1949, J. Mar. Biol. Assoc. U.K., 28:493-532) concludea 
that they are opisthobranch gastropods. In 1965 Doris Maas (Zeitschrift 
Morphologie und Okologie. 54:566-642) confirms Fretter and Graham. 

On p. 11 of the News Letter you place the Notaspidea (often called 
Pleurobranchomorpha ) in the Nudibranchia . However, a great number of them 



OPISTHOBRANCH NEWSLETTER Volume 13, Number 4, Page 14 



have a shell, and they are generally considered as a Superorder of the 
Euthyneura, on the same level as Cephalaspidea ( Bullomorpha ) ; Anaspidea 
( Aplysiomorpha ) • Superorders Ascoglossa; Pteropoda; Nudibranchia ; 
Pulmonata. The Prosobranchia belong to another Subclass, the Streptoneura. 

Mr. Dolin, No. 2480, is not right with Retusa canaliculata. Canaliculata 
has a radula, Retusa has none. See Journal of Molluscan Studies, Suppl. 2. 
1977, p. 5, where it is^ called Utriculastra canaliculata. 

Jeff Hamann found 'color variations from Chromodoris neona to C. 
clenchi.' These species are not distinguished by their extremely variable 
colours, but by their rhachidian radular tooth, different in shape in both 
species; it has a distinct small cusp in neona, none in clenchi." 

From J.^A. Ortea: "En el mes de abril he impartido un cursillo de 
Malacologia en la Universidad de Nayarit, Me'xico y eh recolectado 
Opisthobranquios en la Isla Isabela; entre ellos en Chromodoris sphoni, uno 
de los mas bellos animales que he visto nunca. 

Mas tarde, en julio, he recolectado Opisthobranquios en Canarias junto 
con P. Bouchet y los colegas de la Universidad de la Laguna. Mi primer 
trabajo sobre ello, dedicado a los Ascoglosos, esta a punto de terminarse, 
incluye 2, especies del Caribe: Elysia flava y Polybranchia viridis; 3 del 
Mediterra'neo :_, Polybranchia borgnini, Callyphila mediterralH'nea y Oxynoe 
olivacea, asi como otras 3 de nueva descripcion." 

From Dave Behrens - "I have received several comments concerning the 
identification of the photograph of Aplysia vaccaria Winkler, 1955, Number 16 
in my fieldguide. The concern intimates that the photograph is actually an A. 
californica. I will agree that the specimen is extraordinarily mottled for 
an A. vaccaria, although most references report grey-white mottling common 
in this species. Regardless, I was unable to locate and procure a high 
quality, diagnostic photograph of a more typical A. vaccaria. Though not 
apparent in the photograph the parapodia of this specimen were joined 
immediately behind the pallial siphon, unlike A. californica, where the 
parapodia join near the tail. The body of this specimen displayed the 
characteristic firmness of A. vaccaria and during the seven months in 
captivity, it never produced ink. The specimen was collected near Ensenada, 
Baja California, Mexico. 

NEW SUBSCRIBERS & ADDRESSES 



Suite D-57 
Center, 
working 



Gil Cat, 72 South Africa Blvd., Ash Kelon, Israel 78411 

Jay Shrake, Marine Ecological Consultants, 553 Stervens Ave, 
Solana Beach, CA 92075 

Gordon Robilliard, Woodward-Clyde Consultants, 2 Embarcadero 
Suite 700, San Francisco, CA 94111 

Jeff Goddard (need a good address for Jeff; rumor has it he's working on 
branchs at Oregon State) 

Peter Oringer, Rt. 1, Box 38, Bayside, CA 95524 

Library, Bamfield Marine Station, Bamfield, British Columbia, Canada, VOR 
1B0 

INFORMATION & SPECIMEN EXCHANGE 

Tom Cockburn needs a copy of ALLEN, JOHN K., 197,6. Function of nematocysts 
in eolid nudibranchs. WSM ANN. REPORT, 9:50. I can't find mine. Can someone 
help? 

fixed 



for histological 
of the genus 
adaptative 
comparison with 
At first, the 
bubbling carbon 
reserved specimens 



Dr. Jean Tardy will be glad to receive Aeolidiacea 
purposes (Bouin, 10% formaldehyde in sea water and so one 
Cerberilla, Aeolidiella and of all species which present 
differentiations of papillae to a particular function, for 
species of the European Atlantic and Mediterranean coasts 
best is to anaesthetize the specimens during 2-4 minutes by 
di-oxide in sea water. It's a very good system. The preser 
will be sent to J. Tardy, Director, Lab. de Biologie - Biochimie, Marines et 
Phycoe'cologie , 10726 - IUT de La Rochelle, Cedex (France). 

Dave Behrens needs copies of two Baba papers: ON 0178 and ON 0179- 

Ruggero Guidastri needs copies of Staurodoris bicolor description from 
Bergh s Malacologisches Untersuchungen (1884) Vol. 3, pp. 655-657, pi- o9 and 
Siraims ilo from Marcus (1955) Opisthobranchia from Brazil. 



Dr. Ethel Tobach (American Museum of Natural History, Department o: 
Behavior, Central Park West at 79th Street, New York, New York 10024) 
like information about sightings of Aplysia on the Eastern Sea Board 
as possible. People may call me collect at the Museum (2 12-87 3-1300) 

?APER 



hnimai 
would 
as soon 



OPISTHOBRANCH NEWSLETTER Volume 13, Number 4, Page 15 



BIMODAL SEASONALITY IN MELIBE LEONINA 
416 Lilac Drive, Los Osos, CA 93402. 



(GOULD, 1852). by David W. Behrens 



Annual cycles and the number of generations produced a year in 
opisthobranchs have received no attention in the literature pertaining to 
northeastern Pacific fauna. Nybakken (1974) reports on the seasonal 
occurrence of 17 species of Dendronotacean , Arminacean and Aeolidacean 
nudibranchs. Annual cycles of British and European opisthobranchs have 
been carefully reported by Garstang (1890), Renouf (1915), Behrentz (1931), 
Thompson (1957, 1958, 1961a & b, 1964, 1966) and Miller (1962). Among them, 
they report two or more generations a year for 15 species, although in 
several cases disagreement exists between authors. These differences are 
most likely due to geographical factors. 

Settling of the postlarval benthic stage of Melibe leonina (Gould, 1852) 
was documented from July 1975 through December 1979- Juveniles were sought 
twice weekly in a small kelp bed of Macrocystis integrifolia near Diablo 
Cove, San Luis Obispo County, California. Juveniles were first observed at a 
length of about 4-7mm. In each instance individuals of progressively 
greater size, up to 55mm, were collected subsequently for several weeks 
until the species disappeared entirely from the kelp. 

During three of five years (1975-1979) two occurrences were observed 
(Figure 1). The first annual appearance was in April-May, the second in 
September-October, except in 1975 when both generations were observed later, 
August and December. An examination of seawater temperatures during 
periods of appearances provides no explanation for such periodicity. No 
specific temperature or temperature trend stands out as significant (Figure 
1). 



I 7 

I 6- 
I 5- 
14 
! 3- 
12 - 



/\ 



"A/ 

.0-/ V 







».* 



i i 



t JFMAMJJASONDJFMAMJJASONDJFMAMJJASONDJFMAMJJASONDJFMAMJJASOND 
1975 I976 I977 I 978 * I979 

FIGURE 1- Appearance of the benthic existance of Melibe leonina with monthly 
mean seawater temperatures.* I 975- I 979 



Ajeska & Nybakken (1976) report on the population structure and biology 
of Melibe in Monterey Bay ? California, l80kms north of my study site. Their 
data suggests one generation per year. 

Miller (1962) suggests that species having two or more generations a year 
are dependent on fluctuating food supplies, which they exploit rapidly, while 
they last. He also reports that this group has a short life-span. I am 
unaware of the exact diet of the population at Diablo Cove, however Ajeska & 

Nybakken (1976) report that in Monterey Bay the young feed on Macrocystis 
associated organisms. Due to the perennial existence of this kelp bed, the 
substrate is present continuously, both for Melibe and its associated diet. 



OPISTHOBRANCH NEWSLETTER Volume 13, Number 4, Page 16 

The actual stability of the diet species is unknown, therefore making 
difficult to test Miller's food dependency relationship. 
LITERATURE CITED: Aieska & Nybakken (1976) ON9692; Behrentz (193D ON 
Garstang (1890) ON893; Miller ( 1 962 ) ■ ON 1502 ; Nybakken (1974) ON6550; 
(1978) ON2506; Renouf (1915) 0N1887; Thompson (1957) ON2167; 

0N2169; Thompson (1961a) 0N2175; Thompson (1961b) 0N2 

ON2178 






Nybakken 
Thompson 
Thompson 



1958) 
(1964) 



2? 
207 

176; 



APR , | 



EDITOR'S NOTE 

The OPISTHOBRANCH NEWSLETTER has established an editorial board. All 
papers submitted for publication are subject to review. Citations for all 
r, papers" published in the OPISTHOBRANCH NEWSLETTER to date are included in 
this issue 
me know. 



If readers feel additional material should be "cited" please let 



The drawings in 
Kikutaro Baba. 



ON 12(12):38 were all photo reductions of drawings by Dr 



I intend to mail issues of the OPISTHOBRANCH NEWSLETTER with a cover wrap 
similar to that used on the last issue. If anyone is experiencing damage 
from postal handling please let me know. I will try to find something better. 
Addressing and licking envelopes is a real pain. 

The March issue of volume thirteen was mislabeled as issue 2. I apologize 
for the error. The page numbers are correct. One of the beauties of a 
computer is that it allows you to make mistakes much more efficiently. 

I have been keeping most of my opisthobranch papers and microfiche in 
storage for the past five years. This makes it very difficult to find some 
papers when copies are requested. I hope to have my office set up within 
the next two months or so. Please bear with me. If I cannot find a 
requested paper I will try to list it in the ON so that someone else can help 
the requestor. 

FOR SALE 

Airmail postage and handling for Dave Behrens opisthobranch book is 
$6.00. Surface mail postage is $2.00. Copies are still available from the 
ON at $14.95 each plus postage. 

BIBLIOGRAPHY OF OPISTHOBRAHCHI A 

2493 ALTIMIRA, CARLOS & J0AND0MENEC ROS, August 1979- Algunos moluscos 
marinos de las Islas Canarias. [Some marine molluscs of the Canary Islands] 
VIERAEA, 8(1 ):3-12, figs.. 1-3; 1 tbl. [Spanish; English abstract; 9 
onistl*iOLSr*3rich s d g c i g s 

2494 BEHRENS, DAVID W., February 1981 . A Color Variation in Chromodoris 
macfarlandi ( Nudibranchia: Doridacea). OPISTHOBRANCH NEWSLETTER, 13(2):5; 
fig. 1. 

2495 BEHRENS, DAVID W., 1980 (March, 1981). A 
the Opisthobranch Fauna of San Francisco Bay. 
12(4-12):34-37, figv 1, tbl. 1. 

2496 BLEAKNKX, J. SHERMAN, September 1973- Collecting Nudibranchs in Nova 
Scotia. OPISTHOBRANCH NEWSLETTER, 5(9):58-60. 

2497 BRIDGES, CECILIA B., September 1973- Ecology and Larval Development 
of Phyllaplysia taylori Dall. OPISTHOBRANCH NEWSLETTER, 5(9):50. 

2498 CASE, ROBERT M., August 1972. An Ecological Study of Stiliger 

f uscovittata (Mollusca: Opisthobranchia). MS THESIS, California State 
University 76d. 17 text f i£ s 

2499 CRA'nE, SANDRA, September 1973- Vital Stains: A Marking Technique for 
Nudibranchs. OPISTHOBRANCH NEWSLETTER, 5(9):56. 

2500 EDMUNDS, MALCOLM, September 1972. Catriona - Trinchesia. 
OPISTHOBRANCH NEWSLETTER, 4(9):47-48; 4 figs. 

2501 GREENE, RICHARD W., September 1973- Determination of Photosynthetic 
Function in Algal and Chloroplast Symbionts in Opisthobranchs . 
OPISTHOBRANCH NEWSLETTER, 5(9):52-55, figs. 

2502 KRESS, A., October 1975- Observations During Embryonic Development in 
the Genus Doto (Gastropoda, Opisthobranchia). OPISTHOBRANCH NEWSLETTER, 
7(10):50« [Abstract of ON #9548] 

2503 LANCE, JAMES R., December 1980. Splendor in the Sea. DISCOVER, The 
Newsmagazine of Science,, 1(3)^58-63, color photos. [15 species]. 

2504 LEMCHE, HENNING, August 15, 1972. Names of Opisthobranchs placed on 
the Official Lists and Indexes before 1972. OPISTHOBRANCH NEWSLETTER, 
4(8):31-39- 

2505 LONG, STEVEN J., September 1973- Accumulation and Dissemination of 
Information. OPISTHOBRANCH NEWSLETTER, 5(9):60. [Abstract] 

2506 NYBAKKEN, J., 1978. Abundance, Diversity and Temporal Variability in a 
California Intertidal Nudibranch Assemblage. MARINE BIOLOGY, 45:129-146. 



Review of the Literature on 
OPISTHOBRANCH NEWSLETTER, 



OPISTHOBRANCH NEWSLETTER 

May 1981 



Volume 13, Number 5, Page 17 



Zooi. Depfc 

M-QLLUSCAf 




Illustration at right 
Trapania dalva Marcus, 1972 
Drawing by Eveline Marcus 



INTRODUCTION TO THE "OPISTHOBRANCH NEWSLETT 

The Opisthobranch Newsletter is published by Steven J. Long, 359 Roycroit 

Ave, Long Beach. California 90814, USA. Telephone 213-439-2028. 

Subscription rates are $15.00 per year for individuals and $17-50 

for institutions. Back volumes are available at $10.00 per 

(24X reduction) of back volumes are $5-00 per volume. My 

your subscription is paid for the following years: >_197o, >0977, /* 1978. 

_X1979, _^19o0, _><_1 981 1982. Please contact me immediately i " 

is incorrect. 



per year 
volume. Microfiche 
records show that 
_^s1 9 7 7, ^1978, 
.y if you feel this 



PURPOSE OF TEE OPISTHOBRANCH NEWSLETTER 

The primary purpose of the Opisthobranch Newsletter is to assist people 
working with Opisthobranch mollusks. The newsletter has been published 
since 1969 and was inititated to facilitate research and information 
exchange by researchers and interested amateurs in all parts of the world. 
Personal notes on researches, trips, etc.; notices of meetings; recent 
publications concerning Opisthobranchs ; and short articles on 
Opisthobranchs are included in issues. In addition, I try to include 
bibliographical citations on every paper noting Opisthobranchs. 

INSTRUCTIONS TO AUTHORS 

I am very dependent on input from subscribers to maintain the information 
content of the Opisthobranch Newsletter. Notes and articles should be 



pecifically not for publication please note 
that fact. 

Articles for publication should be typewritten and laid out exactly as you 
would like them published including any drawings at the final size and placed 
where you would like them in the text. It is suggested that you use a "cut 
and paste" Xerox copy of the materials to lay out your format and include 
the originals to any drawings and typescript separately. 

I currently have very limited resources for photo reduction so the 
illustrations should be sent to fit on my normal page format. The text will 
all be put into my computer text editing system manually and then printed out 
automatically. Publications will be reviewed by one or more of your peers 
for style and content. If time permits you will receive a galley proof for 
your review prior to publication. Please refer to the biological style 
manuals for basic guidance and to the past issues of the Opisthobranch 
Newsletter for examples of acceptable citation and drawing formats. Note 
that I have decided to use complete bibliographical citations with papers 
published in the Opisthobranch Newsletter. 

READER FORUM 

From David Behrens (416 Lilac Drive, Los Osos, CA 93402): "Hurst (1967) 
reports Catriona aurantia from Puget Sound. Has, C. aurantia (now C. gymnota 
been collected since, or is it possible that Hurst's critter was Catriona 
columbiana (=C. alpha)? Miller (1977) reports Catriona alpha from New 
Zealand. Although Williams & Gosliner (1980) refute this species as not 
being conspecific with C. alpha by Baba & Hamatani, 1963, I am curious to 
know whether there are other possible examples of species occurring circum- 
Pacificly. To my knowledge Diaulula sandiegensis and Aldisa sanguinea may 
have the widest range, of those species recognized, to occur on both shores.